Evolution of proton single-particle states in neutron-rich Sb isotopes beyond <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>N</mi><mo>=</mo><mn>82</mn></mrow></math>

A. Jungclaus; J. M. Keatings; G. S. Simpson; H. Naïdja; A. Gargano; S. Nishimura; P. Doornenbal; G. Gey; G. Lorusso; P.-A. Söderström; T. Sumikama; J. Taprogge; Z. Y. Xu; H. Baba; F. Browne; N. Fukuda; N. Inabe; T. Isobe; H. S. Jung; D. Kameda; G. D. Kim; Y.-K. Kim; I. Kojouharov; T. Kubo; N. Kurz; Y. K. Kwon; Z. Li; H. Sakurai; H. Schaffner; Y. Shimizu; H. Suzuki; H. Takeda; Z. Vajta; H. Watanabe; J. Wu; A. Yagi; K. Yoshinaga; S. Bönig; J.-M. Daugas; R. Gernhäuser; S. Ilieva; T. Kröll; A. Montaner-Piza; K. Moschner; D. Mücher; H. Nishibata; A. Odahara; R. Orlandi; M. Scheck; K. Steiger; A. Wendt

doi:10.1103/PhysRevC.102.034324

Evolution of proton single-particle states in neutron-rich Sb isotopes beyond $N = 82$

A. Jungclaus^1,*, J. M. Keatings², G. S. Simpson³, H. Naïdja⁴, A. Gargano⁵, S. Nishimura⁶, P. Doornenbal⁶, G. Gey^3,7,6, G. Lorusso⁶ et al.

P.-A. Söderström⁶, T. Sumikama⁸, J. Taprogge^1,9,6, Z. Y. Xu⁶, H. Baba⁶, F. Browne^10,6, N. Fukuda⁶, N. Inabe⁶, T. Isobe⁶, H. S. Jung¹¹, D. Kameda⁶, G. D. Kim¹², Y.-K. Kim^12,13, I. Kojouharov¹⁴, T. Kubo⁶, N. Kurz¹⁴, Y. K. Kwon¹², Z. Li¹⁵, H. Sakurai^6,16, H. Schaffner¹⁴, Y. Shimizu⁶, H. Suzuki⁶, H. Takeda⁶, Z. Vajta¹⁷, H. Watanabe⁶, J. Wu^15,6, A. Yagi¹⁸, K. Yoshinaga¹⁹, S. Bönig²⁰, J.-M. Daugas²¹, R. Gernhäuser²², S. Ilieva²⁰, T. Kröll²⁰, A. Montaner-Piza²³, K. Moschner²⁴, D. Mücher²², H. Nishibata¹⁸, A. Odahara¹⁸, R. Orlandi²⁵, M. Scheck²⁶, K. Steiger²², and A. Wendt²⁴

¹Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
²School of Computing, Engineering, and Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, United Kingdom
³LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France
⁴Laboratoire de Physique Mathematique et Subatomique, Constantine 1 University, Constantine 25000, Algeria
⁵Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, I-80126 Napoli, Italy
⁶RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
⁷Institut Laue-Langevin, B.P. 156, F-38042 Grenoble Cedex 9, France
⁸Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan
⁹Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
¹⁰School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United Kingdom
¹¹Department of Physics, Chung-Ang University, Seoul 156-756, Republic of Korea
¹²Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea
¹³Department of Nuclear Engineering, Hanyang University, Seoul 133-791, Republic of Korea
¹⁴GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
¹⁵School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
¹⁶Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo, Japan
¹⁷Atomki, P.O. Box 51, Debrecen H-4001, Hungary
¹⁸Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
¹⁹Department of Physics, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, Japan
²⁰Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
²¹CEA, DAM, DIF, 91297 Arpajon cedex, France
²²Physik Department E12, Technische Universität München, D-85748 Garching, Germany
²³Instituto de Fsica Corpuscular, CSIC-Univ. of Valencia, E-46980 Paterna, Spain
²⁴IKP, University of Cologne, D-50937 Cologne, Germany
²⁵Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
²⁶School of Engineering, University of the West of Scotland, Paisley PA1 2BE, United Kingdom

^*andrea.jungclaus@csic.es

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Phys. Rev. C 102, 034324 – Published 23 September, 2020

DOI: https://doi.org/10.1103/PhysRevC.102.034324

Abstract

The $β$ decay of the semimagic Sn isotopes ${}^{136, 137, 138}{Sn}$ has been studied at the Radioactive Isotope Beam Factory at the RIKEN Nishina Center. The first experimental information on excited states was obtained for ${}^{137}{Sb}$ while, in the case of ${}^{136}{Sb}$ , the established excitation scheme could be extended by ten previously unidentified levels. In the decay of the most-neutron-rich isotope ${}^{138}{Sn}$ , two $γ$ rays were observed for the first time. The new experimental results, in combination with state-of-the-art shell-model calculations, provide the first information with respect to the evolution of the $0 g_{7 / 2}$ and $1 d_{5 / 2}$ proton single-particle states with increasing neutron number beyond $N = 84$ .

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Evolution of proton single-particle states in neutron-rich Sb isotopes beyond $N = 82$

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Evolution of proton single-particle states in neutron-rich Sb isotopes beyond N=82

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Evolution of proton single-particle states in neutron-rich Sb isotopes beyond $N = 82$